Impressive Team Rocket, very impressive. At first, I thought this was going to be a boring 2 parter with a plain COTD, but I didn't think that TR would have a plot here. So yay! Great episode!
Dr. Zager is one helluva antagonist. He's getting stuff done. Especially after attempting to capture the kami trio in the last 2-parter.
Ferris and Tirtouga's friendship really touched me, and it was shocking to see that the fossil he discovered was from the Tirtouga he met. The whole time gate thing left me baffled, but I'll buy it.